diff --git a/docker/haproxy/config/haproxy.cfg b/docker/haproxy/config/haproxy.cfg
index 50566c93b9..ba17bd64d9 100644
--- a/docker/haproxy/config/haproxy.cfg
+++ b/docker/haproxy/config/haproxy.cfg
@@ -113,3 +113,4 @@ backend tb-api-backend
   option log-health-checks
   server tbApi1 tb1:8080 check inter 5s resolvers docker_resolver resolve-prefer ipv4
   server tbApi2 tb2:8080 check inter 5s resolvers docker_resolver resolve-prefer ipv4
+  http-request set-header X-Forwarded-Port %[dst_port]